ATF Refill Kit Utilizes compressed “shop-air” to produce pressure for fluid dispensing . Includes adapters for most modern sealed transmissions . Conveniently located ON/OFF and flow control valve . Used fluids or overflow can be extracted by switching from pressure to vacuum . Isolated flow control and pressure/vacuum switch valves provide simple functionality control . Redundant pressure control systems safely maintain peak output pressure below 30 psi (2 bar) . 2.5-gallon (10-liter) capacity reservoir MV7412